CN108572449B

CN108572449B - Display device and electronic apparatus

Info

Publication number: CN108572449B
Application number: CN201810367774.6A
Authority: CN
Inventors: 郑效盼; 邹成刚; 翁飞军; 吴斐
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2014-03-31
Filing date: 2014-03-31
Publication date: 2021-09-14
Anticipated expiration: 2034-03-31
Also published as: CN104950437B; US9805633B2; CN104950437A; DE102014019628A1; CN108572449A; US20150279254A1

Abstract

The invention provides a display device and an electronic apparatus using the same. A display device, comprising: a display component for outputting initial light corresponding to the first image; and the light path conversion component is used for receiving initial light rays corresponding to the first image from the display component and performing light path conversion on the light rays corresponding to the first image to form a virtual image corresponding to the first image, so that a viewer at a specific position perceives the virtual image corresponding to the first image, wherein the perceived size of the virtual image is larger than the display size of the display component.

Description

Display device and electronic apparatus

The divisional application is filed on 3/31/2014, with application number 201410125865.0, and with the title of "display device and electronic device".

Technical Field

The present invention relates to the field of display devices, and more particularly, to a display device and an electronic apparatus using the same.

Background

Currently, electronic devices are generally equipped with conventional displays, such as Liquid Crystal Displays (LCDs), organic electroluminescent displays, Organic Light Emitting Diode (OLED) displays, and the like. When the electronic device is limited in its own dimensions (e.g., the electronic device is a wearable electronic device such as a smart watch, smart glasses, or HMD (head mounted display device)), its display area is typically small if only a conventional display is provided, and limited information can be displayed.

Accordingly, it is desirable to provide a display device that is capable of providing a larger size and higher resolution image or video display, without being limited by the size of the wearable electronic device itself, such as a smart watch, thereby enhancing the associated user experience. In addition, when a display device that provides a larger-sized and higher-resolution image or video display is used for a wearable electronic apparatus, it is desirable to further reduce the volume and weight of the display device, thereby providing a more comfortable wearing experience for the user.

Disclosure of Invention

According to an embodiment of the present invention, there is provided a display device including: a display component for outputting initial light corresponding to the first image; and the light path conversion component is used for receiving initial light rays corresponding to the first image from the display component and performing light path conversion on the light rays corresponding to the first image to form a virtual image corresponding to the first image, so that a viewer at a specific position perceives the virtual image corresponding to the first image, wherein the perceived size of the virtual image is larger than the display size of the display component.

Furthermore, according to the display device of the embodiment of the invention, the light rays forming the first image in the display component are in a first plane, the light rays exiting from the optical path conversion component and forming a virtual image corresponding to the first image are in a second plane, and the first plane and the second plane have a first included angle, so that a first dimension of the display component in a direction perpendicular to the first plane is smaller than a second dimension in a direction parallel to the first plane.

Further, according to the display device of the embodiment of the present invention, wherein the display assembly includes: a light emitting unit for emitting a backlight to a first direction; the display unit is arranged in the irradiation area of the backlight and used for generating initial light corresponding to the first image according to the first image, wherein the light-emitting unit comprises a light source subunit and a light guide subunit, the light source subunit is used for emitting light to a second direction, the light guide subunit is arranged in the irradiation area of the light, and the light forms the backlight through the light guide subunit; wherein the first direction and the second direction are different such that a size of the display assembly in the first direction is smaller than a size of the display assembly in the first direction when the first direction and the second direction are the same.

Further, according to the display device of the embodiment of the present invention, wherein the display assembly includes: a light emitting unit for generating and emitting a planar backlight; and the display unit is arranged in the irradiation area of the plane backlight and used for generating initial light rays corresponding to the first image according to the first image.

Further, according to the display device of the embodiment of the present invention, wherein the display assembly includes: a light emitting unit for emitting a backlight; a beam splitting unit through which the backlight from the light emitting unit is transmitted; and the display unit is arranged in an irradiation area of the backlight which is transmitted through the beam splitting unit and used for generating initial light rays corresponding to the first image according to the first image, wherein the initial light rays corresponding to the first image from the display unit are guided to the light path conversion component through the beam splitting unit.

Further, according to the display device of the embodiment of the present invention, wherein the display assembly includes: the display unit is used for generating a display signal corresponding to the first image according to the first image; a light emitting unit for generating an initial light corresponding to the first image based on the display signal; and a beam splitting unit for guiding the initial light corresponding to the first image from the light emitting unit to the optical path conversion member, wherein the display unit and the light emitting unit are integrally disposed at one side of the beam splitting unit such that a size of the display device in a direction in which the initial light is generated is smaller than a size of the display device in the direction in which the initial light is generated in a case where the display unit and the light emitting unit are integrally disposed at both sides of the beam splitting unit.

Further, according to the display device of the embodiment of the present invention, wherein the display unit includes: a micro-display subunit configured by a plurality of pixel unit arrays, each pixel unit for generating an initial light corresponding to the first image; the circuit board subunit is used for providing a control signal according to the first image so as to control the pixel units in the micro-display subunit to generate initial light rays corresponding to the first image; and; a substrate subunit for configuring thereon the micro-display subunit and the circuit board subunit.

Further, according to the display device of the embodiment of the present invention, wherein the substrate sub-unit is made of a non-metal material satisfying a predetermined strength, and a thickness of the substrate sub-unit is lower than a thickness of the substrate sub-unit made of a metal material satisfying the predetermined strength.

Further, according to the display device of the embodiment of the present invention, wherein the optical path conversion member includes a collimating unit for collimating the initial light corresponding to the first image from the display member into collimated light corresponding to the first image and guiding the collimated light into the waveguide unit; the waveguide unit guides collimated light rays from the collimating unit corresponding to the first image to the specific position, wherein the collimated light rays corresponding to the first image are used to form a virtual image corresponding to the first image.

Furthermore, according to the display device of the embodiment of the invention, the collimating unit includes a first collimating subunit and a second collimating subunit which are arranged oppositely, and a polarization beam splitting subunit which is arranged between the first collimating subunit and the second collimating subunit, and the light corresponding to the first image from the display component is initially reflected to the first collimating subunit through the polarization beam splitting subunit, and then is collimated by the first collimating subunit and the second collimating subunit, and then is emitted as collimated light corresponding to the first image through the polarization beam splitting subunit.

Further, according to the display device of the embodiment of the present invention, the collimating unit and the display component are located on a first side with respect to a plane on which the waveguide unit is located, the collimated light corresponding to the first image is emitted to a second side with respect to the plane on which the waveguide unit is located, and the first side and the second side are opposite sides with respect to the plane on which the waveguide unit is located.

Furthermore, according to the display device of the embodiment of the invention, the outer side surface of the waveguide unit adjacent to the exit surface of the collimated light ray is a curved surface.

According to another embodiment of the present invention, there is provided an electronic apparatus including: a body device including a processing unit for generating a first image to be displayed and performing display control; the fixing device is connected with the body device and is used for fixing the relative position relation with a user of the electronic equipment; the display device is arranged in the body device and/or the fixing device and comprises a display assembly and a control module, wherein the display assembly is used for outputting initial light corresponding to the first image; and the light path conversion component is used for receiving initial light rays corresponding to the first image from the display component and performing light path conversion on the light rays corresponding to the first image to form a virtual image corresponding to the first image, so that a viewer at a specific position perceives the virtual image corresponding to the first image, wherein the perceived size of the virtual image is larger than the display size of the display component.

Furthermore, according to another embodiment of the present invention, the optical path conversion member includes a collimating unit for collimating the initial light corresponding to the first image from the display member into collimated light corresponding to the first image and guiding the collimated light to the waveguide unit, and a waveguide unit for guiding the collimated light corresponding to the first image from the collimating unit to the specific position; the collimating unit and the display component are located on a first side relative to a plane where the waveguide unit is located, collimated light rays corresponding to the first image exit to a second side relative to the plane where the waveguide unit is located, and the first side and the second side are opposite sides relative to the plane where the waveguide unit is located, so that the direction in which the collimated light rays corresponding to the first image exit from the light path conversion component is the direction outward of the annular space or the approximately annular space.

Further, according to another embodiment of the present invention, the display device has a visible region that is at least a part of a surface of the waveguide unit from which the light exits, the visible region corresponding to a part of the optical path conversion member from which the light corresponding to the first image exits, and the visible region is provided in the body device.

Furthermore, according to another embodiment of the present invention, in the electronic device, the other region of the optical path conversion component except for the visible region is disposed in the body device and/or the fixing device, and the display component is disposed in the body device and/or the fixing device, wherein an included angle between the visible region and the other region outside the visible region is within a predetermined angle range.

Furthermore, an electronic apparatus according to another embodiment of the present invention, wherein the display device is the display device as described above.

According to the display device and the electronic equipment using the display device, the display device can provide larger-size and higher-resolution image or video display without the limitation of the size of wearable electronic equipment such as a smart watch, so that the related user experience is improved. In addition, the volume and weight of the display device can be further reduced, thereby providing a more comfortable wearing experience for the user.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

FIG. 1 is a schematic diagram summarizing a display device according to an embodiment of the invention;

fig. 2 is a block diagram illustrating a structure of a display device according to a first exemplary embodiment of the present invention;

fig. 3A and 3B are block diagrams illustrating structures of a display device according to a second exemplary embodiment of the present invention and an existing display device, respectively;

fig. 4 is a block diagram illustrating a structure of a light emitting unit in a display device according to a third exemplary embodiment of the present invention;

fig. 5 is a block diagram illustrating a structure of a display assembly in a display apparatus according to a fourth exemplary embodiment of the present invention;

fig. 6 is a block diagram illustrating a structure of a display component in a display apparatus according to a fifth exemplary embodiment of the present invention;

fig. 7 is a block diagram illustrating a structure of a display unit in a display device according to a sixth exemplary embodiment of the present invention;

fig. 8A and 8B are block diagrams illustrating a structure of a display device according to a seventh exemplary embodiment of the present invention;

fig. 9 is a schematic view illustrating a display device according to an embodiment of the present invention applied to an electronic apparatus;

fig. 10A to 10E are block diagrams illustrating the configuration of an electronic apparatus according to an embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating an electronic device according to an embodiment of the invention;

fig. 12 is another configuration block diagram illustrating an electronic apparatus according to an embodiment of the present invention;

fig. 13 is another configuration block diagram illustrating an electronic apparatus according to an embodiment of the present invention;

fig. 14A and 14B are block diagrams illustrating another structure of an electronic apparatus according to an embodiment of the present invention;

fig. 15 is another configuration block diagram illustrating an electronic apparatus according to an embodiment of the present invention;

fig. 16 is another configuration block diagram illustrating an electronic apparatus according to an embodiment of the present invention;

fig. 17A and 17B are a top view and a side view, respectively, illustrating a first configuration example of a visible area of an electronic apparatus according to an embodiment of the present invention;

fig. 18A and 18B are a top view and a side view, respectively, illustrating a second configuration example of a visible area of an electronic apparatus according to an embodiment of the present invention;

fig. 19A and 19B are a top view and a side view, respectively, illustrating a third configuration example of a visible area of an electronic apparatus according to an embodiment of the present invention;

fig. 20A to 20D are schematic views illustrating first to third examples of mutual movement states of a visible area of an electronic apparatus according to an embodiment of the present invention, respectively;

fig. 21A to 21D are schematic views illustrating a first specific configuration of a fixing device in an electronic apparatus according to an embodiment of the present invention;

fig. 22A and 22B are diagrams illustrating a second specific configuration of a fixing device in an electronic apparatus according to an embodiment of the present invention;

fig. 23 is another configuration block diagram illustrating an electronic apparatus according to an embodiment of the present invention;

fig. 24A to 24C are schematic views illustrating a display device in an electronic apparatus according to an embodiment of the present invention; and

fig. 25A and 25B are schematic views illustrating a use form of the electronic apparatus according to the embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a display device according to an embodiment of the present invention will be described with reference to fig. 1 to 8B. The display device according to the embodiment of the present invention may be applied to any electronic apparatus including the display device therein, which may be a wearable electronic apparatus or any other type of electronic apparatus. It is easily understood by those skilled in the art that, in the case where the display device according to the embodiment of the present invention is applied to a wearable electronic apparatus, the wearable electronic apparatus may be, but not limited to, a head-mounted or wrist-worn electronic apparatus.

Fig. 1 is a schematic diagram summarizing a display device according to an embodiment of the present invention. As shown in fig. 1, a display device 1 according to an embodiment of the present invention includes a display module 10 and a light path conversion module 20. The display assembly 10 is used to output an initial light ray (as indicated by the solid arrow in fig. 1) corresponding to a first image to be displayed by the display device 1. The optical path conversion component 20 is configured to receive initial light corresponding to the first image from the display component 10, and perform optical path conversion on the light corresponding to the first image to form a virtual image corresponding to the first image, so that a viewer 30 at a specific position perceives the virtual image corresponding to the first image, where the perceived size of the virtual image is larger than the display size of the display component 10.

Specifically, in the preferred embodiment of the present invention, the display assembly 10 may be a self-luminous type display assembly such as an Organic Light Emitting Diode (OLED) display, and may also be a backlight type display assembly such as a liquid crystal display. The optical path conversion member 20 may be a lens assembly including a lens for collimating and magnifying an image and a waveguide sheet or a flexible waveguide for changing an exit direction of the image, or the like. Further, the viewer 30 located at a specific position may perceive a virtual image corresponding to the first image. Specifically, the image can be imaged through the optical path conversion component 20 to a specific position according to design requirements, for example, as shown in fig. 1, and the specific position can be any side relative to the optical path conversion component 20.

As such, the display apparatus 1 according to the embodiment of the present invention as shown in fig. 1 can provide a larger-sized and higher-resolution image or video display to a viewer located at a specific position according to design requirements without being limited by the size of the electronic device itself in which the display apparatus 1 is configured. Hereinafter, specific configurations of the display devices according to the first to seventh exemplary embodiments of the present invention will be further described.

Fig. 2 is a block diagram illustrating a structure of a display device according to a first exemplary embodiment of the present invention. For simplicity of illustration, only the display apparatus 1 including the display module 10 and the light path conversion module 20 is illustrated in fig. 2, and the internal configurations of the display module 10 and the light path conversion module 20 and the light path are not shown in fig. 2.

As shown in fig. 2, the light rays forming the first image in the display module 10 are in a first plane 300, and the light rays exiting from the light path conversion module 20 forming a virtual image corresponding to the first image are in a second plane 400. The first plane 300 and the second plane 400 have a first included angle. In a preferred embodiment of the present invention, the first included angle is 90 degrees. In this case, a first dimension La of the display component in a direction perpendicular to the first plane is made smaller than a second dimension Lb of the display component in a direction parallel to the first plane. Therefore, when the display device 1 is disposed in a wearable electronic apparatus, for example, when the electronic apparatus is smart glasses, the display assembly 10 is disposed in a frame (i.e., a temple) of one side of the smart glasses, so configured that the thickness of the frame for disposing the display assembly 10 is thinner. Similarly, when the electronic device is a smart watch, the display assembly 10 is disposed in a band on one side of the smart watch, so configured that the thickness of the band on which the display assembly 10 is disposed is thinner. Therefore, the display assembly 10 according to the first exemplary embodiment of the present invention realizes a thickness reduction in a specific direction, and thus realizes a thickness reduction arranged in the corresponding direction of the display device 1.

Fig. 3A and 3B are block diagrams illustrating structures of a display device in the related art and according to a second exemplary embodiment of the present invention, respectively. Like the display apparatus according to the first exemplary embodiment of the present invention as shown in fig. 2, the display apparatus 1 according to the second exemplary embodiment of the present invention also includes a display module 10 and a light path conversion module 20. As shown in fig. 3A, the conventional display assembly 10A specifically includes a light source subunit 111, a light uniformizing subunit 112 and a display unit 12, wherein the light uniformizing subunit 112 overlaps the light source subunit 111 in an emission direction of the initial light corresponding to the first image, and the light uniformizing subunit 112 uniformizes a point light source emitted by the light source subunit 111 into a backlight. In contrast, as shown in fig. 3B, in the display device 1 according to the second exemplary embodiment of the present invention, the display assembly 10B is specifically shown to include a light emitting unit 11 and a display unit 12. The light emitting unit 11 is used to generate and emit a planar backlight (light rays as indicated by the dotted arrow in fig. 3B), i.e., located in the first plane as described above with reference to fig. 2. The display unit 12 is disposed in the illumination area of the planar backlight, and is configured to generate an initial light (such as the light indicated by the solid arrow in fig. 3B) corresponding to the first image according to the first image.

Therefore, in the display device according to the second exemplary embodiment of the present invention as shown in fig. 3B, the combination of the single point light source and the optical dodging system as shown in fig. 3A is replaced with the single light emitting unit 11 emitting the planar backlight, so that the thickness of the display assembly 10 of the display device according to the second exemplary embodiment of the present invention in the emission direction of the initial light corresponding to the first image is reduced.

Fig. 4 is a block diagram illustrating a structure of a light emitting unit in a display device according to a third exemplary embodiment of the present invention. The light emitting unit 11 as shown in fig. 4 may be one implementation of the light emitting unit of the emission plane backlight in the display device according to the second exemplary embodiment of the present invention shown in fig. 3A and 3B. The light emitting unit 11 in the display device according to the third exemplary embodiment of the present invention specifically includes a light source subunit 101 and a light guiding subunit 102. Specifically, the light source subunit 101 is configured to emit light (such as light indicated by a dashed arrow in fig. 4) in a second direction, the light guide subunit 102 is disposed in an irradiation area of the light, and the light forms the backlight (such as light indicated by a solid arrow in fig. 4) through the light guide subunit 102. That is, the light guiding subunit 102 converts the light emitted by the light source subunit 101, which is a single point light source, into a planar backlight, i.e., located in the first plane as described above with reference to fig. 2. In a preferred embodiment of the present invention, the light source sub-unit 101 may be an LED light source, and the light emitting unit 11 may further include an optical film. The thickness of the whole light emitting unit 11 is controlled to be within 1.5mm, for example, and the light emitting angle of the converted planar backlight of the light guiding sub-unit 102 is controlled to be within 14 degrees, that is, the maximum included angle between the emission direction of the backlight formed by the light guiding sub-unit 102 and the second direction is 7 degrees. Therefore, the emission direction of the converted planar backlight passing through the light guiding subunit 102 can be regarded as approximately the same direction (i.e., the second direction), and the generation of stray light exiting to a direction different from the second direction is avoided.

Therefore, in the light emitting unit 11 of the display device according to the third exemplary embodiment of the present invention, the light emitting direction of the light source sub-unit 101 is different from the light emitting direction after the light guide sub-unit 102 is converted (i.e., the light source sub-unit 101 is arranged at the side of the light guide sub-unit 102 in the direction perpendicular to the backlight emitting direction), so that the thickness of the display assembly 10 of the display device 3 according to the third exemplary embodiment of the present invention in the emitting direction of the initial light corresponding to the first image is reduced as compared with the case where the light source sub-unit and the light guide sub-unit are arranged to overlap in the backlight emitting direction.

Fig. 5 is a block diagram illustrating a structure of a display module in a display apparatus according to a fourth exemplary embodiment of the present invention. As shown in fig. 5, the display assembly 10 in the display device according to the fourth exemplary embodiment of the present invention includes a light emitting unit 51, a display unit 52, and a beam splitting unit 53. Specifically, the light emitting unit 51 is used to emit a backlight (light rays as indicated by a dotted arrow in fig. 5). As described above, the light emitting unit 51 may be a light emitting unit of an emission plane backlight as described above with reference to fig. 3A to 4. The backlight from the light emitting unit 51 is transmitted through the beam splitting unit 53. In a preferred embodiment of the present invention, the beam splitting unit 53 is a polarizing beam splitting unit (PBS). The P-polarized backlight emitted from the light emitting unit 51 is transmitted through the PBS as the beam splitting unit 53 to illuminate the display unit 52. The display unit 52 is disposed in an irradiation area of the backlight transmitted through the beam splitting unit 53, and generates an initial light (a light indicated by a solid arrow in fig. 5) corresponding to the first image according to the first image. Further, the original light corresponding to the first image from the display unit 52 (after being modulated into S-polarized light) is reflected at the PBS as the beam splitting unit 53 to be guided to the optical path conversion member via the beam splitting unit 53.

Fig. 6 is a block diagram illustrating a structure of a display assembly in a display apparatus according to a fifth exemplary embodiment of the present invention. As shown in fig. 6, the display assembly 10 in the display device according to the fifth exemplary embodiment of the present invention includes a light emitting unit 61, a display unit 62, and a beam splitting unit 63. Specifically, the display unit 62 is configured to generate a display signal corresponding to the first image according to the first image. The light emitting unit 61 is configured to generate an initial light corresponding to the first image based on the display signal. That is, the light emitting unit 61 and the display unit 62 in the display apparatus according to the fifth exemplary embodiment of the present invention may be implemented as a self-light emitting type OLED display device, the display unit 62 is a control unit for generating a display driving signal according to a first image to be displayed, and the light emitting unit 61 is a self-light emitting layer performing light emitting display based on the received display driving signal. Similarly to the case described with reference to fig. 5, the beam splitting unit 63 is configured to guide the initial light corresponding to the first image from the light emitting unit 61 to the optical path conversion member. In a preferred embodiment of the present invention, the beam splitting unit 63 is a polarizing beam splitting unit (PBS).

Therefore, in the display module 10 of the display device according to the fifth exemplary embodiment of the present invention, the display unit and the light emitting unit are integrally arranged at one side of the beam splitting unit, so that the size of the display device in the direction in which the original light is generated is smaller than the size of the display device in the direction in which the original light is generated in the case where the display unit and the light emitting unit are integrally arranged at both sides of the beam splitting unit (as in the case shown with reference to fig. 5).

Fig. 7 is a block diagram illustrating a structure of a display unit in a display device according to a sixth exemplary embodiment of the present invention. The display unit 12 shown in fig. 7 may be used for the display assembly described with reference to fig. 3A to 5. As shown in fig. 7, the display unit 12 includes a micro display subunit 701, a circuit board subunit 702, and a substrate subunit 703. Specifically, the micro-display subunit 701 is configured by a plurality of pixel unit arrays, each pixel unit is used for generating an initial light corresponding to the first image. The circuit board subunit 702 is configured to provide a control signal according to the first image to control the pixel units in the micro-display subunit 701 to generate an initial light corresponding to the first image. The substrate subunit 703 is used to configure the micro-display subunit 701 and the circuit board subunit 702 thereon. The bending strength and fracture toughness of the substrate subunit 703 can be represented by the following equations:

wherein sigma_fFor bending strength, K_ZCFor fracture toughness, E is the modulus of elasticity, γ_fIs the energy to break and C is the crack size. As can be seen from the above equations 1 and 2, in order to improve the strength of the material, it is necessary to increase the fracture energy and the elastic modulus to reduce the fracture size. To achieve material toughness, the fracture energy and elastic modulus must be increased. In the prior art, the substrate subunits are typically made from a metal base material such as aluminum, often up to 1.6mm in thickness. Non-metallic materials such as ceramic materials have a much higher modulus of elasticity than metals, often by a factor of 1 to several times.

Therefore, in the display unit of the display device according to the sixth exemplary embodiment of the present invention, the substrate subunit 703 is made of a non-metal material satisfying a predetermined strength such that the thickness of the substrate subunit 703 is lower (e.g., as low as 0.25mm) than the thickness of the substrate subunit made of a metal material satisfying the predetermined strength.

Fig. 8A and 8B are block diagrams illustrating the structure of a display device according to a seventh exemplary embodiment of the present invention. Similar to the display device described with reference to fig. 1, the display device according to the seventh exemplary embodiment of the present invention as shown in fig. 8A and 8B specifically includes a display component 10 and a light path conversion component 20.

In particular, the display assembly 10 comprises a display unit 12 and a beam splitting unit 13 (as shown in fig. 8A), of the type which has been described above with reference to fig. 6. Alternatively, the display assembly 10 includes a light emitting unit 11, a display unit 12, and a beam splitting unit 13 (as shown in fig. 8B), and this type of display assembly has been described above with reference to fig. 5. Here, a repetitive description of the display assembly 10 and its optical path will be omitted.

As shown in fig. 8A and 8B, the optical path conversion member 20 further includes a collimating unit 21 and a waveguide unit 22. The collimating unit 21 is configured to collimate the initial light corresponding to the first image from the display assembly 10 into collimated light corresponding to the first image and guide the collimated light into the waveguide unit 22. Specifically, the collimating unit 21 includes a first collimating subunit 201 and a second collimating subunit 202 arranged oppositely, and a polarization beam splitting subunit 203 arranged between the first collimating subunit 201 and the second collimating subunit 202, where the light from the display assembly 10 corresponding to the first image is initially reflected to the first collimating subunit 201 via the polarization beam splitting subunit 203, and then is collimated by the first collimating subunit 201 and the second collimating subunit 202, and then exits as collimated light corresponding to the first image via the polarization beam splitting subunit 203. The waveguide unit 22 guides collimated light rays corresponding to the first image, which are used to form a virtual image corresponding to the first image, from the collimating unit 21 to the specific position. In a preferred embodiment of the present invention, the first collimating subunit 201 and the second collimating subunit 202 may be a single lens or a lens group designed according to needs. By adjusting the relative positions of the lenses or lens groups configuring the first collimating sub-unit 201 and the second collimating sub-unit 202, the size adjustment of the virtual image corresponding to the first image can be achieved.

In addition, as shown in fig. 8A and 8B, the waveguide unit 22 further includes a first reflection subunit 203 and/or a second reflection subunit 204, and by setting the position and the angle of the first reflection subunit 203 and/or the second reflection subunit 204, the collimated light rays from the collimating unit 21 corresponding to the first image can be controlled to be directed to the specific position to exit. In the first case, the collimating unit 21 and the display module 10 are located at a first side with respect to the plane in which the waveguide unit 22 is located, towards which first side they may exit when arranged by a first reflecting subunit 203 as shown in fig. 8A and 8B. In the second case, when the second reflecting sub-unit 203 shown in fig. 8A and 8B is provided, the collimated light corresponding to the first image may exit to the second side with respect to the plane where the waveguide unit 22 is located, the first side and the second side being opposite sides with respect to the plane where the waveguide unit is located. Specifically, when the display device is applied to, for example, a head-mounted electronic apparatus, the configuration example of the first case described above may be adopted such that collimated light corresponding to the first image is made to exit toward the first side, that is, such that the collimated light is made to exit toward the eyes of a user wearing the head-mounted electronic apparatus. When the display device is applied to, for example, a wrist-worn electronic apparatus, the configuration example of the first case described above may be adopted such that collimated light corresponding to the first image exits toward the second side, i.e., such that the collimated light exits toward the eyes of a user wearing and viewing the wrist-worn electronic apparatus. Further, as will be described in further detail below, the exit direction of the display device may be configured according to the viewing requirement, for example, the rotation of the first reflective subunit 203 and/or the second reflective subunit 204 may be controlled, so as to control the exit direction of the first reflective subunit 203 and/or the second reflective subunit 204, and implement the switching of the bidirectional display of the display device.

Therefore, in the display device according to the seventh exemplary embodiment of the present invention, the folded imaging optical path between the first collimating subunit 201 and the second collimating subunit 202 is realized by using the polarization beam splitting subunit 203 in the collimating unit 21, thereby reducing the overall size of the display device.

Fig. 9 is a schematic view illustrating a display device according to an embodiment of the present invention applied to an electronic apparatus. As shown in fig. 9, when the display device according to the embodiment of the present invention is applied to an electronic device, the outer side surface of the waveguide unit 22 adjacent to the exit surface of the collimated light can be configured according to the requirements of the outer frame of the electronic device. In a preferred embodiment of the present invention, the outer side surface of the waveguide unit 22 adjacent to the exit surface of the collimated light ray may be a curved surface. For example, when the display device shown in fig. 9 is applied to a wrist-worn electronic apparatus, the outer side surface of the waveguide unit 22 (i.e., the visible area of the display device) needs to be adapted to the shape of the outer frame of the wrist-worn electronic apparatus (i.e., the dial of a smart watch), which is configured to be a curved surface (preferably, a circular shape).

It is easily understood by those skilled in the art that the technical solutions of the first to seventh exemplary embodiments of the present invention described above with reference to fig. 2 to 8B may be combined and configured as necessary, which will all fall within the scope of the claimed invention. For example, in the display device according to the embodiment of the present invention, the light rays forming the first image in the display element 10 may be configured to be in a first plane 300, and the light rays exiting from the light path conversion element 20 to form a virtual image corresponding to the first image may be in a second plane 400, the first plane 300 and the second plane 400 having a first included angle such that a first dimension of the display element in a direction perpendicular to the first plane is smaller than a second dimension of the display element in a direction parallel to the first plane (as shown in fig. 2); meanwhile, a single planar light source may be employed as a backlight or a planar light source may be produced with a surface light source sub-unit disposed at the light guiding sub-unit side in the display assembly 10 so that the thickness in the emission direction of the initial light corresponding to the first image is reduced (as shown in fig. 3A to 4); further, by integrally arranging the display unit and the light emitting unit on one side of the beam splitting unit, the size of the display device in the direction of generating the initial light is made smaller than in a configuration in which the display unit and the light emitting unit are integrally arranged on both sides of the beam splitting unit (as shown in fig. 6); further, the substrate sub-units in the display unit of the display device are simultaneously prepared using a non-metallic material satisfying a predetermined strength such that the thickness of the substrate sub-units is lower than that of the substrate sub-units prepared from a metallic material satisfying a predetermined strength (as shown in fig. 7); and meanwhile, the folded imaging light path is realized by utilizing the polarization beam splitting subunit in the collimation unit, so that the whole size of the display device is reduced.

In the above, a display device according to an embodiment of the present invention is described with reference to fig. 1 to 9. Hereinafter, an electronic apparatus to which the display device according to the embodiment of the present invention is applied will be further described.

An electronic device to which the display device according to the embodiment of the present invention is applied may be any electronic device including a display device, which may be a wearable electronic device or any other type of electronic device. Under the condition that the electronic equipment is wearable electronic equipment, the electronic equipment comprises a body device and a fixing device, wherein the fixing device is connected with the body device, and the fixing device is used for fixing the relative position relation of a user of the electronic equipment. Further, in the case that the electronic device is a head-mounted electronic device, the fixing device may have a corresponding support member according to a form of the head-mounted electronic device (for example, the head-mounted electronic device is smart glasses or a head-mounted display). For example, in the case of smart glasses, the fixing means are two support members (i.e., temples and nose bridge supports) connected at both ends of the smart glasses or three support members (i.e., temples, lens frames and nose bridge supports) at both ends and in the middle of the smart glasses, so that the eye legs located at both ends of the space and the nose bridge support located in the middle of the space form an approximately rectangular space for enclosing the head of the person. When a user configures the head-mounted electronic device, the visible area of the display device is arranged in the eye area of the user, so that the emergent direction of the display device faces the eyes of the user. Furthermore, the electronic device may also be a wrist-worn electronic device, which will be described in further detail below with reference to the drawings.

Fig. 10A to 10E are block diagrams illustrating the configuration of an electronic apparatus according to an embodiment of the present invention. As shown in fig. 10A, the electronic apparatus 100 according to the embodiment of the present invention includes a body device 101 and a fixing device 102. The fixing device 102 is connected to the body device 101. The fixture 102 includes at least a fixed state in which the fixture 102 can be at least a portion of an annulus or an approximate annulus that satisfies a first predetermined condition, the annulus or the approximate annulus surrounding a cylinder that satisfies a second predetermined condition.

Specifically, fig. 10B and 10C illustrate two fixing states in which the fixing device 102 is connected to the body device 101, respectively. In a first fixing state as shown in fig. 10B, the fixing device 102 and the body device 101 form a closed loop annular space, wherein the fixing device 102 and the body device 101 respectively form a part of the annular space. In the second fixing state as shown in fig. 10C, the fixing device 102 and the body device 101 form an approximately annular space with a small opening, wherein the fixing device 102 and the body device 101 respectively constitute a part of the annular space. In a preferred embodiment of the present invention, the body device 101 is a dial portion of a smart watch, and the fixing device 102 is a band portion of the smart watch. The annular space or the approximate annular space formed by the body device 101 and the fixing device 102 can surround the wrist of the user of the smart watch as the columnar body, and the diameter of the annular space or the approximate annular space is larger than the diameter of the wrist of the user and smaller than the diameter of the fist of the user.

Furthermore, the annular space or the approximately annular space can of course also be formed by the fixing device 102 alone. As shown in fig. 10D and 10E, the body means 101 may be arranged on the fixing means 102 (i.e., the body means 101 is attached to the fixing means 102 in a surface contact manner), so that only the fixing means 102 itself forms the annular space (fig. 10D) or the approximate annular space (fig. 10E) for externally surrounding the columnar body. The fixing means 102 is arranged with a fixing mechanism (not shown) such as a buckle, a snap, a zipper or the like.

Further, as shown in fig. 10A to 10E, the body apparatus 101 is provided with a processing unit 103 and a first display apparatus 104. The processing unit 103 is used to generate a first image and perform display control. In the electronic apparatus 100 shown in fig. 10A to 10E, the first display device 104 is disposed on the body device 101. However, it is easily understood by those skilled in the art that the present invention is not limited thereto, and the first display device 104 may be disposed on the fixing device 102, or the first display device 104 may be disposed across the body device 101 and the fixing device 102. The first display device 104 is the display device according to the embodiment of the present invention described above with reference to fig. 1 to 9. That is, the first display device 104 includes a display component (not shown) for outputting an initial light corresponding to a first image; and an optical path conversion member (not shown) for receiving initial light corresponding to the first image from the display member and performing optical path conversion on the light corresponding to the first image to form a virtual image corresponding to the first image such that a viewer at a specific position perceives the virtual image corresponding to the first image, wherein the perceived size of the virtual image is larger than the display size of the display member.

Fig. 11 is a schematic diagram illustrating an electronic device 100 according to an embodiment of the present invention. As shown in fig. 11, the first display device 104 includes a display assembly 10, a collimating unit 21, and a waveguide unit 22, and a detailed description of each unit will be omitted herein for brevity.

Further, the first display device 104 has a visible region 200, the visible region 200 is at least a part of a surface of the waveguide unit 22 from which light exits, the visible region 200 corresponds to a part of the optical path conversion member from which light corresponding to the first image exits, and the visible region 200 is provided in the body device 101.

Further, in the embodiment shown in fig. 11, a part of the area of the waveguide unit 22 and the collimating unit 21 are disposed across the body device 101 and the fixing device 102, and the display module 10 is disposed in the body device 101. It is to be readily understood that the internal configuration of the electronic apparatus according to the embodiment of the present invention is not limited thereto. The other regions of the optical path conversion member except the visible region are disposed in the body device 101 and/or the fixing device 102, and the display member 10 is disposed in the body device 101 and/or the fixing device 102. The angle between the visible area 200 and the other areas outside the visible area 200 is in a predetermined angle range (for example, between 0 and 90 degrees, preferably, between 20 and 30 degrees).

Fig. 12 is another structural block diagram illustrating an electronic apparatus according to an embodiment of the present invention. Compared to the electronic apparatus 100 according to the embodiment of the present invention described above with reference to fig. 10A to 10E, the electronic apparatus 110 according to the second embodiment of the present invention shown in fig. 12 further includes the second display device 105. The second display device 105 is a different type of display device from the first display device 104. For example, the second display device 105 includes, but is not limited to, a liquid crystal display device, an organic electroluminescent display device, an organic light emitting diode display device, an E Ink type display device, and the like.

One of the first display device 104 and the second display device 105 is provided on the body device 101, and the other is provided on the fixing device 102. As shown in fig. 12, the first display device 104 is provided on the body device 101, and the second display device 105 is provided on the fixing device 102. Of course, the second display device 105 may be disposed on the body device 101, and the first display device 104 may be disposed on the fixing device 102. Similarly to the first display device 104, the display direction of the second display device 105 is in a direction outward of the annular space or the approximate annular space. Generally, the second display device 105 is used for displaying content such as time indication without enlargement display.

Further, not limited to the case shown in fig. 12, the first display device 104 and the second display device 105 may be disposed on the body device 101 or the fixing device 102 at the same time. For example, the first display device 104 and the second display device 105 are arranged side by side on the body device 101. Alternatively, the first display device 104 and the second display device 105 are arranged at two opposite positions in a radial direction through the fixture 102.

Fig. 13 is another structural block diagram illustrating an electronic apparatus according to an embodiment of the present invention. In contrast to the electronic device 100 according to the embodiment of the present invention described above with reference to fig. 10A to 10E, the electronic device 120 according to the embodiment of the present invention shown in fig. 13 further includes the sensor unit 106. As shown in fig. 13, the sensor unit 106 is disposed on the body device 101. However, the sensor unit 106 is also arranged on the fastening device 102.

The sensor unit 106 is configured to generate a first control signal when sensing that a first predetermined condition is satisfied, and the processing unit 103 controls the switch of the first display device 104 according to the first control signal. In one embodiment of the present invention, the sensor unit 106 is an acceleration sensor, the first control signal is that the value of the acceleration component in the direction of gravity is greater than or equal to a predetermined value (i.e., the user puts down the electronic apparatus 100 from a state of use in which the first display device 104 is viewed), and the processing unit 103 controls the first display device 104 to be turned off according to the first control signal. It is easily understood by those skilled in the art that the sensor unit 106 according to the embodiment of the present invention is not limited to being an acceleration sensor, but includes other sensor units that can generate a control signal.

Fig. 14A and 14B are block diagrams illustrating another structure of an electronic apparatus according to an embodiment of the present invention. In contrast to the electronic device 110 according to the embodiment of the present invention described above with reference to fig. 10A to 10E, the electronic device 130 according to the embodiment of the present invention 1 shown in fig. 14A and 14B further includes an image capturing unit 107. The image capturing unit 107 may be provided on the body device 101 or the fixing device 102. Specifically, fig. 14A shows a case where the first display device 104 is provided on the body device 101 and the image capturing unit 107 is provided on the fixing device 102. Fig. 14B shows a case where the first display device 104 and the image capturing unit 107 are both provided on the fixing device 102. In either case of fig. 14A or 14B, the image capturing direction of the image capturing unit 107 is radially opposite to the image output direction of the first display device 104 in the annular space or the approximate annular space. In this way, when the live-action image captured by the image capturing unit 107 is displayed on the first display device 104, the user can view the image as if looking through the electronic apparatus 140 through the first display device 104 because the capturing direction of the image capturing unit 107 coincides with the direction viewed by the eyes of the user.

In a preferred embodiment of the present invention, the image capturing unit 107 is configured to capture an interaction of a user to generate a first image capturing signal, and the processing unit 103 converts the first image capturing signal into a second control signal to control the first display device 104 to display a second image.

In another preferred embodiment of the present invention, the image capturing unit 107 is configured to capture a first sub-image in the image capturing direction, and the processing unit 103 generates a second sub-image. The second sub-image may be an identification image obtained by analyzing the first sub-image with respect to the first sub-image, and the second sub-image may also be based on an identification image obtained by, for example, a GPS sensor. Further, the second sub-image may be an identification image obtained by performing a search based on the feature information from a server via a network based on the feature information obtained from the first sub-image. Superimposing the first sub-image and the second sub-image generates the first image for display by the first display device 104.

Fig. 15 is another structural block diagram illustrating an electronic apparatus according to an embodiment of the present invention. Compared to the electronic apparatus 100 according to the embodiment of the present invention described above with reference to fig. 10A to 10E, the electronic apparatus 140 according to the embodiment of the present invention shown in fig. 15 further includes the third display device 108. In the electronic apparatus 140 shown in fig. 15, the third display device 108 is provided on the main body device 101 together with the first display device 104. It is to be understood that the present invention is not limited thereto, and the third display device 108 and the first display device 104 may be disposed on the fixing device 102 together.

The third display device 108 is the same type of display device as the first display device 104. That is, the third display device is used to form an enlarged virtual image corresponding to the third image. The third image is associated with the first image, and when the two eyes of the viewer respectively view the first display device 104 and the third display device 108, the viewer can perceive a stereoscopic image corresponding to the first image and the third image.

Fig. 16 is another structural block diagram illustrating an electronic apparatus according to an embodiment of the present invention. In contrast to the electronic apparatus 100 according to the embodiment of the present invention described above with reference to fig. 10A to 10E, in the electronic apparatus 150 according to the embodiment of the present invention shown in fig. 16, the first display device 104 includes the first visible region 1041, the second display device 105 includes the second visible region 1051, and the first visible region 1041 and the second visible region 1051 are disposed on the body device 101. It is easily understood that the first visual region 1041 and the second visual region 1051 are provided on the fixing device 102, or one of the first visual region 1041 and the second visual region 1051 is provided on the body device 101 and the other of the first visual region 1041 and the second visual region 1051 is provided on the fixing device 102. As described above, the first and second

visible regions

1041 and 1051 are regions of the first and second display devices 104 and 105 that are viewed by a user to perceive display contents.

Fig. 17A and 17B are a top view and a side view, respectively, illustrating a first configuration example of a visible region of an electronic apparatus according to an embodiment of the present invention.

As shown in fig. 17A, the first visual region 1041 and the second visual region 1051 have a first configuration example of overlapping arrangement in the body device 101. The present invention is not limited thereto, and the first visual region 1041 and the second visual region 1051 may be overlapped on the fixing device 102.

Fig. 17B further illustrates a side view of a first example configuration in which the first view region 1041 and the second view region 1051 have an overlapping arrangement. As shown in fig. 17B, the first display device 104 provided with the first visible region 1041 and the second display device 105 provided with the second visible region 1051 are arranged as shown in fig. 17B such that the light transmittance in a direction outward of the annular space or the approximate annular space satisfies a predetermined condition in at least a visible region located outside the annular space or the approximate annular space 1051 of the first visible region 1041 and the second visible region. The predetermined condition may be that the light transmittance is equal to or greater than a predetermined value (such as 70%). In the example shown in fig. 17A and 17B, the first visible region 1041 is made to be on the outer side. The present invention is not limited to this, and the second visible region 1051 may be located on the outer side. By making the light transmittance of the first visible region 1041 equal to or higher than a predetermined value, the first visible region 1041 does not affect the display function of the second visible region 1051, thereby achieving a more compact configuration.

Fig. 18A and 18B are a top view and a side view, respectively, illustrating a second configuration example of a visible region of an electronic apparatus according to an embodiment of the present invention.

As shown in fig. 18A, the first visual region 1041 and the second visual region 1051 have a second configuration example adjacently disposed on the body device 101 or the fixing device 102. In fig. 18A and 18B, the first visible region 1041 and the second visible region 1051 are adjacently provided in the body device 101. The present invention is not limited thereto, the first visual region 1041 and the second visual region 1051 may be respectively between the body device 101 and the fixing device 102, and a distance between the first visual region 1041 and the second visual region 1051 is smaller than a threshold value (such as 1 cm).

Fig. 18B further illustrates a side view of a second example configuration in which the first view region 1041 and the second view region 1051 have an overlapping arrangement. As shown in fig. 18B, the first display device 104 provided with the first visible region 1041 and the second display device 105 provided with the second visible region 1051 are disposed adjacent to each other as shown in fig. 18B, and the display directions of the first visible region 1041 and the second visible region 1051 are both in the direction outward of the annular space or the approximate annular space.

Fig. 19A and 19B are a top view and a side view, respectively, illustrating a third configuration example of a visible area of an electronic apparatus according to an embodiment of the present invention.

As shown in fig. 19A, the first visual region 1041 and the second visual region 1051 have a third configuration example adjacently disposed on the body device 101 or the fixing device 102. Unlike the second configuration example shown in fig. 18A and 18B, as shown in fig. 19B, the display direction of one of the first visible region 1041 and the second visible region 1051 is in a direction outward of the annular space or the approximate annular space, and the display direction of the other of the first visible region 1041 and the second visible region 1051 is in a direction perpendicular to the direction outward of the annular space or the approximate annular space.

Further, switching of the first visible region 1041 and the second visible region 1051 between an overlapping state and a non-overlapping state with each other will be described with reference to fig. 20A to 20D.

Fig. 20A to 20D are schematic views illustrating first to fourth examples of mutual movement states of a visible area of an electronic device according to an embodiment of the present invention, respectively. For the sake of convenience of description, a case where both the first visual region 1041 and the second visual region 1051 are disposed in the body device 101 is taken as an example. It is to be understood that the present invention is not limited thereto, and both the first visual region 1041 and the second visual region 1051 may be disposed in the fixing device 102. The body device 101 further includes a first subunit 801 and a second subunit 802, one of the first visible region 1041 and the second visible region 1051 is disposed on the first subunit 801, and the other of the first visible region 1041 and the second visible region 1051 is disposed on the second subunit 802, and the first subunit 801 and the second subunit 802 are connected via a connection unit, so that the first visible region 1041 and the second visible region 1051 are switched between the first state and a third state in a non-overlapping arrangement.

Specifically, as shown in fig. 20A, the first subunit 801 and the second subunit 802 are connected via a chute member (not shown) as a connection unit. The first visual area 1041 is disposed in the first subunit 801, and the second visual area 1051 is disposed in the second subunit 802. When the first subunit 801 and the second subunit 802 slide away from each other, the first visual area 1041 and the second visual area 1051 may be displayed simultaneously or independently. Further, it may be provided that the sliding of the first subunit 801 relative to the second subunit 802 generates a control signal that controls the display or closing of the second viewable area 1051. Further, when the first subunit 801 slides to a third state with respect to the second subunit 802, the light transmittance of the first visible region 1041 in the direction outward from the annular space or the approximate annular space satisfies a predetermined condition. In this way, the user can see his/her skin through the electronic device 100 as if the first visible area 1041 is not provided.

As shown in fig. 20B to 20D, the first subunit 801 and the second subunit 802 are connected via a spindle member as a connection unit. The first visual area 1041 is disposed in the first subunit 801, and the second visual area 1051 is disposed in the second subunit 802. When the first subunit 801 and the second subunit 802 rotate relatively, the first visual area 1041 and the second visual area 1051 may be displayed simultaneously or independently. When the first subunit 801 and the second subunit 802 rotate relatively, the first visual area 1041 and the second visual area 1051 may be displayed simultaneously or independently. Furthermore, it may be provided that rotation of the first subunit 801 relative to the second subunit 802 generates a control signal that controls the display or closing of the second viewable area 1051.

It should be noted that, as shown in fig. 20A and 20B, when the first subunit 801 slides or rotates to switch from the first state to the third state, the display direction of the first visible region 1041 does not need to be changed, and the user can continue to view the display of the first visible region 1041 in the original display direction.

As shown in fig. 20C and 20D, when the first subunit 801 rotates to switch from the first state to the third state, the first subunit 801 needs to be further configured such that the user can view the display of the first visible area 1041 in the same viewing direction in the first state and the third state, thereby further improving the convenience of the user. For this reason, in a preferred embodiment of the present invention, the first subunit 801 may be configured to turn over itself, and turn over itself 180 degrees while the first subunit 801 rotates relative to the second subunit 802, so that the first viewing area 1041 turned to the rear is turned back to the original display direction, that is, the display direction of the first viewing area 1041 remains unchanged after the first viewing area 1041 is rotated.

Further, in another preferred embodiment of the present invention, the first display device 104 may be configured to perform display bidirectionally by the optical path selecting unit or the optical switching unit. Specifically, in the optical path of the first display apparatus 104 (for example, in the waveguide unit), a beam splitting device is provided so that light beams for forming an enlarged virtual image are respectively guided to two display directions oppositely provided in the first display apparatus 104. Further, it is also possible to provide an optical path switching device such as a mirror in the optical path of the first display device 104 so that the light beams for forming an enlarged virtual image are respectively directed to two display directions oppositely provided in the first display device 104 by rotating the optical path switching device as necessary. That is, when the first subunit 801 rotates relative to the second subunit 802, the display direction of the first visible region 1041 of the first display device 104 is bidirectionally switched by the beam splitting device or the optical path switching device in response to the rotation, so that the display direction of the first visible region 1041 remains unchanged for the user after the rotation.

Fig. 21A to 21D are schematic views illustrating a first specific configuration of a fixing device in an electronic apparatus according to an embodiment of the present invention.

As shown in fig. 21A, the first fixing device 102 at least includes a first fixing state, in which the first fixing device 102 can be at least a part of an annular space or an approximate annular space satisfying a first predetermined condition, and the annular space or the approximate annular space can surround the column body satisfying a second predetermined condition.

Specifically, the first fixing device 102 and the body device 101 form a closed loop annular space, wherein the first fixing device 102 and the body device 101 respectively form a part of the annular space, or the first fixing device 102 and the body device 101 form a similar annular space with a small opening, wherein the first fixing device 102 and the body device 101 respectively form a part of the annular space. Alternatively, the annular space or the approximately annular space may also be formed by the first fixing device 102 alone. In a preferred embodiment of the present invention, the body device 101 is a dial portion of a smart watch, and the first fixing device 102 is a band portion of the smart watch. The annular space or the approximate annular space formed by the body device 101 and the first fixing device 102 can be surrounded around the wrist of the user of the smart watch as the columnar body, wherein in the case of forming the approximate annular space, a first predetermined condition that the gap of the approximate annular space on the annular circumference is smaller than the diameter of the columnar body to be surrounded should be satisfied. Furthermore, the annular space or the approximate annular space should also satisfy a second predetermined condition that its diameter is larger than the diameter of the user's wrist and smaller than the diameter of the user's fist.

In order to achieve the purpose that the electronic device 100 can provide a plurality of different wearing manners according to the use scene and the requirement of the user, the diameter of the annular space or the approximate annular space formed by the first fixing device 102 illustrated in fig. 21A may be varied. More preferably, the difference between the maximum and minimum values of the diameter is greater than a predetermined threshold. For example, the first fastening device 102 may fasten the electronic device 100 on the wrist of the user, and the first fastening device 102 may fasten the electronic device 100 on the head of the user when the user needs to watch for a long time or wants to watch without occupying two hands. The diameter of the annular space or the approximate annular space should be approximately 10cm when secured to the wrist of the user and approximately 30cm when secured to the head of the user. The annular space or the approximate annular space formed by the first fixture 102 has a maximum of about 30cm and a minimum of about 10 cm. The difference between the maximum and minimum values of said diameter is greater than a predetermined threshold, for example the predetermined threshold may be at least 10cm, and preferably 20 cm; or alternatively the predetermined threshold may be 2 times, and preferably 3 times, the maximum value being the minimum value. That is, the first fixture 102 can provide a large enough adjustment range for the user to meet the requirements of the unused scene.

Fig. 21B to 21D illustrate several ways of implementing the first fixture 102 of fig. 21A with a sufficiently large adjustment range.

As shown in fig. 21B, the first fixing device 102 may include at least one elastic unit 1021. The at least one elastic unit 1021 has a relaxed first state and a taut second state. The diameter of the annular space or the approximate annular space is at the maximum when the elastic unit 1021 is fully relaxed; the diameter of the annular space or the approximate annular space is at the minimum when the elastic unit 1021 is fully tightened.

More specifically, the at least one elastic unit 1021 may refer to a configuration comprising a plurality of discrete sub-elastic units or to only one complete elastic unit. In the case of including a plurality of discrete bullet units, it is further possible to include a plurality of discrete bullet units accommodating elastic spaces connected by a rotating shaft, or a plurality of discrete bullet units accommodating inelastic spaces flexibly connected.

As shown in fig. 21C and 21D, the first fixture 102 may further include an adjustment unit 1022 or an adjustment unit 1023 for controlling the diameter of the annulus or the approximate annulus to vary between the maximum and the minimum. In the case shown in fig. 21C, the adjusting unit 1022 is a member such as a belt buckle, which achieves control of the diameter of the annular space or the approximate annular space by controlling the length of the overlapping portion in the first fixing device 102. In a preferred embodiment of the present invention, the adjusting unit 1022 is a rigid member having an overlapped portion, and when it is required to be fixed to a column body with a large diameter, the length of the overlapped portion can be reduced to be smaller (even until it is completely unfolded and there is no overlapped portion any more) to form a larger diameter of the annular space or the approximate annular space; conversely, when it is desired to fix to a small diameter column, the length of its upper and lower overlapping portions can be increased to be greater (even until three or more overlapping portions are formed) to form a smaller diameter of the annular space or the approximate annular space. The adjustment unit 1022 may be rigidly fixed after being adapted according to the column to be fixed.

In the case shown in fig. 21D, the adjusting unit 1023 is, for example, an elongated member that achieves control of the diameter of the annular space or the approximate annular space by extending its length as needed. In a preferred embodiment of the present invention, the adjusting unit 1023 may include a cavity containing a retractable member, such as a roller. The telescopic member such as the roller can be stretched according to the diameter of the cylindrical body to which it is fixed, and when it is fixed to the cylindrical body having a large diameter, the wound portion of the roller can be pulled out to form a larger diameter of the annular space or the approximate annular space; conversely, when fixation to a small diameter cylinder is desired, more can be wound onto the roller to form a smaller diameter of the annulus or the approximate annulus. Further, it is easily understood that the first fixing device according to the embodiment of the present invention is not limited thereto, but may include a circumscribed extension member to be fixed to a diameter of the cylindrical body to which it is desired to circumscribe or remove a suitable circumscribed extension member.

Furthermore, the fixing device according to the embodiment of the present invention is not limited to the manner in which the annular space or the approximate annular space is formed. In a preferred embodiment of the present invention, the body device 101 can be coupled with different fixing devices through a connecting unit, so as to realize different use configurations to adapt to different wearing manners.

As shown in fig. 22A, the body device 101 includes a first connecting unit 601, the first fixing device 102 includes a second connecting unit 602, and the body device 101 and the first fixing device 102 are connected to each other by the coupling of the first connecting unit 601 and the second connecting unit 602. In a preferred embodiment of the present invention, the body device 101 is a watch face of a smart watch, the first fixing device 102 is a watch band of the smart watch, and the first connecting unit 601 and the second connecting unit 602 are rivet joint pieces of the watch face and the watch band.

As shown in fig. 22B, the electronic apparatus 100 may have a use state different from that shown in fig. 22A. The body device 101 may be decoupled from the first fixing device 102 to establish a second fixing state by coupling between the first connecting unit 601 and the third connecting unit 603 of the second fixing device 105.

The body device 101 may include a first sub-device and a second sub-device, and the first sub-device and the second sub-device are connected via a connection sub-device. The relative positions of the first and second sub-means may be varied. Specifically, in the example shown in fig. 22A and 22B, in a preferred embodiment of the present invention, the body device 101 includes a first sub-device and a second sub-device that can be flipped open or horizontally slid open, and is switched from an overlapping state to a non-overlapping state when the relative positions of the first sub-device and the second sub-device are changed (i.e., flipped open or horizontally slid open). The first connection unit 601 is disposed at both sides of each of the two sub-devices. When it is necessary to couple with the second fixing means 105, the body means 101 is unfolded. For example, the display device is developed from a dial shape as shown in fig. 22A to a spectacle-lens shape as shown in fig. 22B. Accordingly, the second fixation device 105 may be comprised of 2 to 3 sub-parts. For example, in the case where the body device 101 is unfolded to be the entire front portion of the smart glasses, the second fixing device 105 is two supporting members (i.e., temples and bridge supports) connected to both ends of the smart glasses. Furthermore, in case the body device 101 is part of the entire front portion of the smart glasses, the body device 101 may be fixed (e.g. fully edge correspondingly embedded or mounted through a corresponding interface) as a piece of lens or a part of a piece of lens to the second fixing device 105 (not specifically shown). In this case, the second fixing device 105 is three supporting components (i.e., the glasses legs, the lens frame and the nose bridge) connected to the two ends and the middle of the smart glasses. In the second fixing state shown in fig. 22B, the second fixing device 102 functions as at least a part of an approximately rectangular space that can surround the periphery of an object satisfying a third predetermined condition. Specifically, in the case where the object is a head of a person, the third predetermined condition is that there are protrusions (i.e., ears and nose of the person) in a number and position corresponding to the second fixing means 105. That is, in the approximately rectangular space for surrounding the head of the person, the second fixing device 105 has a supporting part corresponding to the protrusion to be fixed, for example, it has eye legs at both ends of the space and a nose bridge pad at the middle of the space to form an approximately rectangular space for surrounding the head of the person.

As shown in fig. 22A and 22B, the electronic device 100 can be switched between a first fixed state and a second fixed state, so that the electronic device 100 can be changed from a usage mode of the smart wristwatch to a usage mode of the smart glasses in a case where a long-time viewing is required or both hands are not occupied.

Fig. 23 is another structural block diagram illustrating an electronic apparatus according to an embodiment of the present invention. As shown in fig. 23, the electronic apparatus according to the embodiment of the present invention also includes a body device 101 and a first fixing device 102. Specifically, the body device 101 includes at least one first sub-unit (first sub-unit a1 to a3), the first fixing device 102 includes at least one second sub-unit (second sub-unit b1 to c3), and the at least one first sub-unit is in data or electrical connection with the at least one second sub-unit. The plurality of first subunits in the body device 101 may be connected in parallel or in series with each other. Similarly, the plurality of second subunits in the first fixture 102 may be connected in parallel or in series with each other. In addition, the at least one first sub-unit may be connected to the first fixing device 102 via the body device 101, and then establish data or electrical connection with the at least one second sub-unit. Furthermore, the at least one first subunit may establish a data or electrical connection directly with the at least one second subunit. The first subunit and the second subunit can be a display unit, a touch unit, a sensing unit, a circuit unit, a battery unit, a communication unit, a positioning unit or an image acquisition unit and the like. Wherein the at least one second sub-unit is connected to the first fixture 102 by a detachable connection interface. In particular, a plurality of second subunits may be mounted via a single interface into the cavity of the first fixture 102. Alternatively, a plurality of second subunits may be mounted into the cavity of the first fixture 102 via a plurality of interfaces in a one-to-one correspondence therewith. Furthermore, the second sub-unit may be mounted and fixed to the outer surface of the first fixing means 102 by an external interface.

Specifically, when the body device 101 is disconnected from the first fixing device 102, the functions required by the current user can be satisfied through each subunit in the body device 101, so that the electronic device 100 is lightened to the greatest extent and consumes the least power. That is, the body device includes a first sub-unit capable of supporting the operation of the electronic device. For example, when the main body apparatus 101 includes the processing unit 103, the first display apparatus 104, and a necessary power supply unit (not shown), the main body apparatus 101 may perform a display function of the electronic device 100. In addition, when a storage unit or a communication unit is configured, the body apparatus 101 may perform a data storage function and a communication function accordingly without coupling the first fixing apparatus 102.

One or more of the at least one first sub-unit and one or more of the at least one second sub-unit may be different types of sub-units. In this way, the functional configuration suitable for different use scenarios can be realized through different combinations of the first subunit and the second subunit.

Furthermore, one or more of the at least one first sub-unit is a sub-unit of the same type as one or more of the at least one second sub-unit. Typically the performance of the first subunit is lower than the performance of the second subunit of the same type as the first subunit. For example, the battery capacity of the first subunit as a power supply unit is lower than the battery capacity of the second subunit as a power supply unit; the communication distance and communication rate of the first subunit as a communication unit are lower than the communication distance and communication rate of the second subunit as a communication unit. More specifically, the sum of the battery capacities of the second subunit as a power supply unit in the first fixture 102 is larger than the battery capacity of the first subunit as a power supply unit. Alternatively, the battery capacity of each of the second sub-units as power supply units in the first fixture 102 is larger than the battery capacity of the first sub-unit as power supply unit. In this way, the user can freely configure each subunit to be assembled according to actual needs. For example, in the case where a user is on a trip or the like requiring a long endurance condition, a second subunit of higher battery capacity may be configured in the first stationary device 102. In case that the user needs to be in a light condition such as sports, the unnecessary second sub-unit of the first fixing device 102 can be removed, and only the first sub-unit of the body device 101 as a power supply unit is used for supplying power. In addition, when the first subunit having the near field communication capability is configured in the body apparatus 101, the electronic device 100 may establish a data connection based on bluetooth, for example, with another independent electronic device (such as a smartphone), thereby implementing a function extension of the independent electronic device, such as an extension for performing display (in a navigation scenario, navigation prompt information is displayed) or an extension for reminding (in an incoming call scenario, identification information of an incoming call party is displayed). When a second sub-unit with long-distance communication capability (for example, mobile communication network data communication capability or wireless local area network data communication capability) is configured in the first fixed device 102, the operation of the first sub-unit (short-distance communication capability unit) can be suspended, and the electronic device 100 becomes a stand-alone electronic device capable of replacing a smart phone. Particularly for a second sub-unit having data communication capabilities of a mobile communication network, such as a third generation, fourth generation or later generation (of course, the same effect can be achieved if the wireless local area network coverage is sufficiently broad). That is, the user can appropriately configure subunits of different communication capabilities according to the use scenario and the demand. For example, when the user conveniently carries the smartphone, the electronic device 100 in the embodiment of the present invention may be used as an accessory of the smartphone by using only the short-range communication unit in the body apparatus 101; when the user is inconvenient to carry the smartphone (for example, during exercise), the remote communication unit may be used to use the electronic device 100 in the embodiment of the present invention as a device having an independent communication function.

In addition, the first subunit and the second subunit in the body device 101 and the first fixing device 102 may also be configured in consideration of the gravity center distribution of the electronic device itself, so as to achieve uniform distribution of the weight of the electronic device, so as to provide a more comfortable wearing experience. Specifically, the cavities or external interfaces of the body device 101 and the first fixing device 102 for installing the first sub-unit and the second sub-unit may be symmetrically distributed. For example, in the electronic apparatus 100 in a state such as a smart watch or smart glasses, the first fixing devices 102 disposed at both sides of the body device 101 have the same number of cavities or external interfaces therein. Furthermore, the subunits mounted to the cavity or external interface may be configured in a unified format. For example, they are of the same size and have almost the same weight (the weight difference of the individual subunits may be designed to be less than a predetermined weight threshold, for example 20 grams).

As described above, the electronic device 100 according to an embodiment of the present invention may have a plurality of usage forms, such as a smart watch form and a smart glasses form. In addition, the first display device 104 in the electronic apparatus 100 may be designed and arranged on the main body device 101 or the fixing device 102 according to different use forms and scenes, or may be arranged so as to straddle both the main body device 101 and the fixing device 102. In order to realize such a plurality of modes and modalities of the electronic apparatus 100, it becomes necessary to provide a more flexible optical path design for the first display device 104.

Fig. 24A to 24C illustrate schematic views of a display device in an electronic apparatus according to an embodiment of the present invention. In contrast to the display devices according to embodiments of the present invention described with reference to fig. 1 to 9, the first display device 104 further comprises a flexible light guiding unit 303 therein.

Specifically, as shown in fig. 24A, the flexible light guide unit 303 is disposed between the display assembly 10 and the light path conversion assembly 20, and guides the light corresponding to the first image to the light path conversion assembly 20. Further, as shown in fig. 24B and 24C, the flexible light guide unit 303 may also be provided in the display module 10 (fig. 24B) or the optical path conversion module 20 (fig. 24C).

In fig. 24A, the flexible light guide unit 303 guides the light corresponding to the first image emitted from the display module 10 to the light path conversion module 20 so that an enlarged virtual image corresponding to the first image is formed by the light path conversion module 20. Thus, due to the flexible nature of the flexible light guiding unit 303, it may be adapted to different design requirements, providing bending or extension of the light path inside the electronic device 100. As such, the display component 10 and the optical path conversion component 20 in the first display device 104 may be separately disposed. That is, the display module 10 may be disposed in the body device 101, and the optical path conversion module 20 may be disposed in the first fixing device 102, and vice versa.

In fig. 24B, the display assembly 10 further includes a light emitting unit 11 and a display unit 12 (as described above with reference to fig. 3A and 3B). Wherein the flexible light guide unit 300 is disposed between the light emitting unit 11 and the display unit 12, for guiding the light emitted from the light emitting unit 11 to the display unit 12. As such, the light emitting unit 11 and the display unit 12 may be separately provided. That is, the light emitting unit 11 may be provided in the body device 101, and the display unit 12 may be provided in the first fixture 102, and vice versa.

In fig. 24C, the optical path conversion member 20 includes a collimating unit 21 and a waveguide unit 22 (as described above with reference to fig. 8A and 8B), and the flexible light guide unit 303 is disposed between the collimating unit 21 and the waveguide unit 22, and guides the light corresponding to the first image to the waveguide unit 22. In this manner, the collimating unit 21 and the waveguide unit 22 may be separately provided. That is, the collimating unit 21 may be provided in the body device 101, and the waveguide unit 22 may be provided in the first fixture 102, and vice versa.

As described above, the flexible light guide unit 303 provided in the display module 10 is used to guide light before the first image is formed, and the flexible light guide unit 303 provided between the display module 10 and the light path conversion module 20 or in the light path conversion module 20 is used to guide light corresponding to the first image after the first image is formed.

The first display device 104 in the electronic apparatus according to the embodiment of the present invention realizes the bending or extension of the internal optical path by disposing the flexible light guiding unit 303 therein. So that the first display device 104 can be configured across both the body device 101 and the fixing device 102. That is, the display module 10 and the optical path conversion module 20 in the first display device 104 are disposed on the body device 101 and the fixing device 102, respectively, or the light emitting unit 11 and the display unit 12 in the display module 10 are disposed on the body device 101 and the fixing device 102, respectively, or the collimating unit 21 and the waveguide unit 22 in the optical path conversion module 20 are disposed on the body device 101 and the fixing device 102, respectively. As such, since the flexible light guide unit 303 is hardly limited by the external physical shape, the first display device 104 in the electronic apparatus according to the embodiment of the present invention can flexibly configure its internal optical path to meet different practical use forms and requirements.

Hereinafter, a usage form of the electronic apparatus according to the embodiment of the present invention will be described further with reference to fig. 25A and 25B.

Fig. 25A and 25B are schematic views illustrating a use form of the electronic apparatus according to the embodiment of the present invention. As shown in fig. 25A and 25B, in the electronic apparatus according to the embodiment of the present invention, the first display device 104 is disposed across the body device 101 and the first fixing device 102. Specifically, the display component 10 in the first display device 104 is disposed in the first fixing device 102, and the optical path conversion component 20 is disposed in the body device 101. As described above, the electronic apparatus according to the embodiment of the present invention is not limited thereto, and it is also possible that the display component 10 is disposed in the body device 101, and the optical path conversion component 20 is disposed in the first fixing device 102. Alternatively, it is also possible that the display unit 10 or the optical path conversion unit 20 itself is disposed across the body unit 101 and the first fixing unit 102. Hereinafter, description will be made only with the case shown in fig. 25A and 25B as an example.

In the electronic apparatus shown in fig. 25A and 25B, it includes a connecting means 106 in addition to the body means 101 and the first fixing means 102. The body device 101 and the fixing device 102 are connected by the connecting device 106. Further, the body device 101 and the fixing device 102 are relatively movable. Specifically, in the first use configuration (unworn state) shown in fig. 25A, the body device 101 and the fixing device 102 connected by the connecting device 106 are almost in the same plane, and in the second use configuration (worn state) shown in fig. 25B, the body device 101 and the fixing device 102 connected by the connecting device 106 are relatively moved at a position and an angle different from those of the first use configuration.

Further, in the electronic device shown in fig. 25A and 25B, the flexible light guide unit 303 is disposed corresponding to the connecting device 106, so that the flexible light guide unit 303 can be used for guiding and transmitting light when the body device 101 and the fixing device 102 are at different relative positions. Specifically, in the case shown in fig. 25A and 25B, the arrangement of the flexible light guide unit 303 in correspondence with the connection device 106 means that the flexible light guide unit 303 passes through the inside of the connection device 106. Of course, the electronic device according to the embodiment of the present invention is not limited thereto, and the flexible light guide unit 303 may be independent from the connection device 106 and attached to each other, so that the two are encapsulated by another encapsulation.

In the existing wearable electronic apparatus not provided with the flexible light guiding unit, regardless of whether the body device and the fixing device of the electronic apparatus are connected by the connecting device or directly connected, when it is required to configure the display unit such as the first display device 104, the display-related components in the display device must be configured on the rigid surface of the body device or the fixing device and the extension plane thereof, resulting in either a very limited physical size of the display-related components that can be accommodated or an unnecessary increase in the plane of the display-related components for accommodation, thereby resulting in a limited display effect for the user or a limited wearing experience.

The electronic device according to the embodiment of the present invention solves the above-described technical problem by configuring the flexible light guide unit 303. It is to be readily understood that the electronic apparatus according to the embodiment of the present invention is not limited to the example described with reference to fig. 25A and 25B. For example, an electronic device according to another embodiment of the present invention may not be provided with the connecting means 106, but the body means 101 and the fixing means 102 are directly connected. Regardless of whether the connecting device 106 is configured, the flexible light guide unit 303 is configured in the first display device 104, so that each component in the first display device 104 can be configured in the body device 101 or the fixing device 102 or across the body device 101 and the fixing device 102 according to design requirements. The flexible nature of the flexible light guiding unit 303 enables a good adaptation to the external shape of the electronic device for adaptation to different objects of use without the need to confine the display related components in a single rigid plane.

In the above, a display device and an electronic apparatus using the same according to an embodiment of the present invention are described with reference to fig. 1 to 25B, which can provide an image or video display of a larger size and a higher resolution without being limited by the size of a wearable electronic apparatus itself such as a smart watch, thereby enhancing the related user experience. In addition, the volume and weight of the display device can be further reduced, thereby providing a more comfortable wearing experience for the user. Furthermore, it provides a more flexible way of configuring the components, so that it is possible to adapt to specific designs for different use modalities. Furthermore, the multifunctional mobile phone can adaptively provide various wearing modes and free combination and switching of various functional modules according to different use scenes, requirements and contents to be displayed of users. According to the electronic equipment and the display method provided by the embodiment of the invention, the user experience of the wearable electronic equipment is greatly improved.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that the series of processes described above includes not only processes performed in time series in the order described herein, but also processes performed in parallel or individually, rather than in time series.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary hardware platform, and may also be implemented by hardware entirely. With this understanding in mind, all or part of the technical solutions of the present invention that contribute to the background can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods according to the embodiments or some parts of the embodiments of the present invention.

The present invention has been described in detail, and the principle and embodiments of the present invention are explained herein by using specific examples, which are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A display device, comprising:

a display component for outputting initial light corresponding to the first image; and

an optical path conversion member for receiving initial light corresponding to the first image from the display member and performing optical path conversion on the light corresponding to the first image to form a virtual image corresponding to the first image such that a viewer at a specific position perceives the virtual image corresponding to the first image, wherein the perceived size of the virtual image is larger than the display size of the display member,

wherein the optical path conversion assembly comprises a collimating unit, a flexible light guiding unit and a waveguide unit,

the collimation unit is used for collimating initial light rays corresponding to the first image from the display assembly into collimated light rays corresponding to the first image;

the flexible light guide unit is arranged between the collimation unit and the waveguide unit and is used for guiding collimated light rays corresponding to the first image to the waveguide unit;

the waveguide unit guides the collimated light corresponding to the first image to the specific position,

wherein the collimated light rays corresponding to the first image are used to form a virtual image corresponding to the first image,

the light rays forming the first image in the display assembly are positioned on a first plane, the light rays forming a virtual image corresponding to the first image and emitted from the light path conversion assembly are positioned on a second plane, and a first included angle exists between the first plane and the second plane, so that a first size of the display assembly in a direction perpendicular to the first plane is smaller than a second size of the display assembly in a direction parallel to the first plane.

2. The display device of claim 1, wherein the display assembly comprises:

a light emitting unit for emitting a backlight to a first direction; and

a display unit arranged in the irradiation region of the backlight for generating an initial light corresponding to the first image according to the first image,

the light-emitting unit comprises a light source subunit and a light guide subunit, the light source subunit is used for emitting light rays to a second direction, the light guide subunit is arranged in an irradiation area of the light rays, and the light rays form the backlight through the light guide subunit; wherein the first direction and the second direction are different such that a size of the display assembly in the first direction is smaller than a size of the display assembly in the first direction when the first direction and the second direction are the same.

3. The display device of claim 1, wherein the display assembly comprises:

a light emitting unit for generating and emitting a planar backlight; and

and the display unit is arranged in the irradiation area of the plane backlight and used for generating initial light rays corresponding to the first image according to the first image.

4. The display device of claim 1, wherein the display assembly comprises:

a light emitting unit for emitting a backlight;

a beam splitting unit through which the backlight from the light emitting unit is transmitted;

a display unit disposed in an illumination area of the backlight transmitted through the beam splitting unit, for generating an initial light corresponding to the first image according to the first image,

wherein the initial light corresponding to the first image from the display unit is guided to the optical path conversion component via the beam splitting unit.

5. The display device of claim 1, wherein the display assembly comprises:

the display unit is used for generating a display signal corresponding to the first image according to the first image;

a light emitting unit for generating an initial light corresponding to the first image based on the display signal; and

a beam splitting unit for guiding the initial light corresponding to the first image from the light emitting unit to the optical path conversion member,

wherein the display unit and the light emitting unit are integrally disposed at one side of the beam splitting unit such that a size of the display device in a direction in which the initial light is generated is smaller than a size of the display device in a direction in which the initial light is generated in a case where the display unit and the light emitting unit are integrally disposed at both sides of the beam splitting unit.

6. The display device according to claim 2, wherein the display unit comprises:

a micro-display subunit configured by a plurality of pixel unit arrays, each pixel unit for generating an initial light corresponding to the first image;

the circuit board subunit is used for providing a control signal according to the first image so as to control the pixel units in the micro-display subunit to generate initial light rays corresponding to the first image; and;

a substrate subunit for configuring thereon the micro-display subunit and the circuit board subunit.

7. The display device of claim 6, wherein the substrate sub-unit is made of a non-metal material satisfying a predetermined strength, and a thickness of the substrate sub-unit is lower than a thickness of the substrate sub-unit made of a metal material satisfying a predetermined strength.

8. An electronic device, comprising:

a body device including a processing unit for generating a first image to be displayed and performing display control;

the fixing device is connected with the body device and is used for fixing the relative position relation with a user of the electronic equipment; and

a display device disposed in the body device and/or the fixing device,

wherein the display device comprises

the flexible light guide unit is arranged between the collimation unit and the waveguide unit and is used for guiding the collimated light rays corresponding to the first image from the collimation unit to the waveguide unit;

9. An electronic device as claimed in claim 8, wherein the display device is a display device as claimed in any one of claims 1 to 7.